Inflation. How worried should we be?

Keep calm. Inflation. How worried should we be?

– by Claudia Sahm

Stay-At-Home Macro (SAHM)

It’s one month of data. As Fed Chair Powell said last week, the Fed doesn’t overreact to a few months of good data or to a few months of bad data. We should not either. The January CPI was not good and slowed progress toward the Fed’s target. Even so, it is unlikely the start of a reacceleration in inflation.

Last year, we saw that the firm prints in the first quarter turned into soft prints in the summer. As a result, the year saw further progress: core CPI was 3.2% in December 2024 versus 3.9% in December 2023 despite its hot start. And it’s not just last year; January CPI has been a source of repeated upside surprises. This year, it is too soon to write off disinflation or Fed rate cuts in 2025.

This year’s surprise in CPI might not be as worrisome as last year’s. As one example, core services excluding housing—known as “supercore”—surged similarly this January and last, but it was less broad-based this year. Transportation services (in orange, led by motor vehicle insurance and airfares) and recreation services (in purple, led by subscription services and events), about one-third of the supercore category, accounted for almost 80% of the increase this January. Last year, the surge was spread more evenly across the supercore categories.

Source: Bureau of Labor Statistics via Bloomberg.

Economist Claudia Sahm: CPI was not good . . .